Hammonton Lake Dam

Hammonton Creek· Atlantic, New Jersey· Built 1902· Earth· 13 ft tall
Significant Hazard Recreation State Government

Key Takeaway

Hammonton Lake Dam is classified as significant hazard in New Jersey. It was completed in 1902 and is 124 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 13 ft (taller than 39.5% in NJ)
Dam Length325 ft
Dam TypeEarth
Normal Storage426 acre-ft
Surface Area71 acres
Drainage Area3 sq mi
Max Discharge0 cfs
Year Completed1902 (124 years old)
NID IDNJ00476

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: May 7, 2021
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

NJDOT

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hammonton Lake Dam?

Hammonton Lake Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Hammonton Lake Dam?

Hammonton Lake Dam is owned by NJDOT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hammonton Lake Dam built?

Hammonton Lake Dam was completed in 1902, making it 124 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Hammonton Lake Dam?

Hammonton Lake Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hammonton Lake Dam?

Hammonton Lake Dam has a dam height of 13 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Hammonton Lake Dam last inspected?

Hammonton Lake Dam was last inspected on May 7, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.